QI Li-ge-wa,LI Wei,GAO Jin-hua,et al.Research Progress on High-solids Anaerobic Digestion of Sewage Sludge[J].China Water & Wastewater,2021,37(18 18):14-19.
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Research Progress on High-solids Anaerobic Digestion of Sewage Sludge

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第37卷 Number: 18 18 Page: 14-19 Column: Date of publication: 2021-09-17
Author(s):
QI Li-ge-wa1; 2; LI Wei1; GAO Jin-hua3; REN Zheng-ran1; WANG Jia-wei1
(1. Beijing Sewage Resource Engineering Technology Research Center， Technology Research and Development Center， Beijing Drainage Group Co. Ltd., Beijing 100124， China； 2. Beijing Drainage Technology Co. Ltd.， Beijing 100124， China； 3. Beijing Drainage Group Water Design and Research Institute Co. Ltd.， Beijing 100077， China)
Keywords:
sewage sludge; high-solids anaerobic digestion; pretreatment; control parameters
Abstract:
High-solids anaerobic digestion (HSAD) of sewage sludge shows the advantages of smaller reactors, larger volumetric biogas production, lower construction and operation cost compared to traditional anaerobic digestion technology. In this paper, the technological superiority, control parameters, digestion performance, existing problems and optimization methods of sewage sludge HSAD were reviewed. It can be inferred that the problems of agitation difficulties, poor mass transfer and heat transfer effects, and the accumulation and inhibition of intermediate products during sewage sludge HSAD can be effectively solved by adjusting and optimizing the control parameters of sewage sludge HSAD and adopting a variety of pretreatment process coupling plus anaerobic digestion/co-digestion and other technological forms. Moreover, the anaerobic digestion performance can also be improved. HSAD is an important trend in the development of sewage sludge anaerobic digestion technology.
Last Update: 2021-09-17